Organic electroluminescent device
US5294810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1992 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Jul 30, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an organic electroluminescent device including first and second electrodes opposite to each other and a multi-layered body which is sandwiched between these electrodes and consists of a plurality of organic films including a light-emitting layer, a material for each organic film and electrode is selected so that electrons and holes are simultaneously and respectively injected from the first and second electrodes in the multi-layered body when a forward biasing voltage is applied, a large amount of injected electrons and holes are accumulated at the multi-layered body, and these electrons and holes are subjected to radiative recombination at a predetermined threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.